[Encephalitis as a neurological manifestation of COVID-19].

In the context of the global COVID-19 pandemic, the different clinical manifestations of this infection pose a challenge for healthcare professionals. Respiratory involvement, the main symptom of SARS-CoV-2 infection, means that other manifestations, such as neurological, take a back seat, with the consequent delay in diagnosis and treatment. All COVID-19 patients admitted with neurological symptoms or diagnosed with encephalitis since March 2020 in a tertiary hospital in Zaragoza, Spain. Two patients with COVID-19 infection confirmed by nasopharyngeal PCR and whose clinical picture consisted of neurological alterations compatible with encephalitis. Cerebrospinal fluid (CSF) microbiology was negative for bacteria and viruses, including SARS-CoV-2 but, given the clinical suspicion of encephalitis due to the latter, antiviral treatment with immunoglobulins and plasmapheresis was started early. Despite this, the evolution was not satisfactory. COVID-19 encephalitis is a recently described clinical entity, whose pathophysiology is still unknown and no treatment with clinical evidence is available to date.

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